The recently released NZXT 1200 is ATX v3.1 compliant, meaning that for short periods it can deliver up to 2400W of power, if required. So far, no PC part, including GPUs, has such high power spikes, under normal operating conditions, but you can never know what the future will bring.
The NZXT C1200 is included in my best ATX v3.x & PCIe 5.x PSU picks article.
I have evaluated the powerful NZXT C1500 and the C1000, leaving the new ATX v3.1 compliant C1200 for next. With 1200W of power, this PSU can support any single-GPU system, along with a power-hungry processor, like the Intel i9-14900K, which can easily exceed 300W sustained power if you set the PL1 and PL2 at 250W (or above). Many people ask me which PSU to select, providing me only with the GPU information, not realizing the extreme power requirements of Intel’s high-end CPUs. So, if you combine an RTX 4090/4080 with an Intel 14900K, you have the perfect “storm” in terms of power consumption, so a strong and quality PSU is required, ideally with more than 1000W of max power.
At the time of the review, I could only find the C1200 ATX v3.0 available at a very good price on Amazon. The ATX v3.1 was nowhere to be seen. If you hesitate to invest in an ATX v3.0 PSU, believing that it is obsolete, you better look at this article, and you might change your mind. As for the C1200, apparently, NZXT is trying to get rid of the old ATX v3.0 stock before it puts out the new version. I guess this is a fine opportunity for you to get a very good PSU at a satisfactory price.
ATX v3.1 1200W PSU Reviews:
- Enermax PlatiGemini 1200W ATX v3.1 & ATX12VO PSU Review: The first of its kind!
- XPG Core Reactor II 1200W PSU Review – Platinum > Gold
- Sharkoon Rebel P20 1200W ATX v3.1 PSU Review
- Super Flower Leadex VII XP 1200W ATX v3.0 PSU Review
- Thermaltake Toughpower PF3 1200W PSU Review
- Thermaltake Toughpower GF A3 1200W PSU Review
- Montech Titan Gold 1200W PSU Review
- Thermaltake Toughpower GF3 1200W ATX v3.0 PSU Review
- Manufacturer (OEM): CWT
- Max Power: 1200W
- Cybenetics Efficiency: [115V] Cybenetics Gold (87-89%) [230V] Cybenetics (89-91%)
- Noise: Cybenetics A- (25-30 dB[A])
- Compliance: ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C (derating from 100% to 80% from 40 °C to 50 °C)
- Alternative Low Power Mode support: Yes
- Power 12V combined: 1200W
- Number of 12V rails: 1
- Power 5V + 3.3v: 120W
- Power 5VSB: 15W
- Cooling: 135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z)
- Semi-Passive Operation: ✓ (selectable)
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 3x PCIe 6+2 pin (3x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 12x SATA (3x cables), 4x 4-pin Molex (1x cable)
- ATX Cable Length: 600mm
- EPS Cable Length: 700mm
- 6+2 pin PCIe Cable Length: 650mm
- 12+4 pin PCIe Cable Length: 645mm
- Distance between SATA / 4-pin Molex: 145mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 160mm
- Weight: 1.86 kg (4.1 lb)
- Warranty: 10-years
- MSRP (including VAT): $185 (ATX v3.0 version)
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | ||
| Max. Power | Amps | 22 | 22 | 100 | 3 | |
| Watts | 120 | 1200 | 15 | |||
| Total Max. Power (W) | 1200 | |||||
Thought I would share my findings.
Firstly thank you crmaris for the good review based on this I decided to get the NZXT C1200, retiring my Corsair AX1200 (it’s now more than 10 years old). I found that I am using less power now, around 0.5Amps or 115 Watt (@ 230V) less power now, I tested playing the same game for the same period and logging with my Fluke 367FC. I did find that the inrush current is a bit higher at 5.2A, vs the 4.7A my corsair had. But overall super happy.
For my next build, I’m going for a complete white build. Luckily, this psu comes in white, but i saw in a video from Der Bauer that the cables are very loosely connected to the psu. Was this also the case for your unit?
https://youtu.be/rjcoCbJoDYc?si=Kl8iYOIIdaQoJ8Gg&t=693
Could you als do a review of the Phanteks revolt 1200?
The difference between the original C1200 and ATX 3.1 version is not just limited to the 12V-2×6 connector. The new version also has one extra PCIe connector, which is good if you have a GPU with three PCIe connectors like the 7900 XTX from AIBs.
Are there any plans to test the be quiet! Straight Power 12 80+ Platinum?
Yes, but I don’t know when I will find the time for it.